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U2044B-MFPY Datasheet(PDF) 1 Page - ATMEL Corporation

Part # U2044B-MFPY
Description  Dual Output Flasher
Download  9 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

U2044B-MFPY Datasheet(HTML) 1 Page - ATMEL Corporation

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Features
Temperature and Supply Voltage Compensated Flashing Frequency
Frequency Doubling Indicates Lamp Outage
Two Relay Driver Outputs with High Current-carrying Capacity and Low Saturation
Voltage
Minimum Lamp Load for Flasher Operation:
≥ 1W
Very Low Susceptibility to EMI
Protection According to ISO/TR7637/1 Level 4
Extremely Low Current Consumption < 10 µA (with Switches Open)
Reverse Polarity Protection
Three Control Inputs: Left, Right and Hazard Warning
1.
Description
The integrated circuit U2044B is used in relay-controlled automotive flashers. With
two output stages, each side of the vehicle is controlled separately. A left and a right
direction indicator input with only a small control current makes switch contacts for
small loads possible.
The separate hazard warning input simplifies the construction of the hazard switch.
Lamp outage is indicated by frequency doubling during direction mode. Thanks to
extreme low current consumption the U2044B can be directly connected to the
battery.
Dual Output
Flasher
U2044B
Rev. 4721B–AUTO–09/05


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